Swage and raker gauge



. March '29, 1927.

1,622,745 D.) D. THOMAS SWAGE AND RAKER GAUGE Filed April 1," 1925 Attorney Patented Mar. 29, 1927.

PATENT OFFICE DUBWARD DOUGLAS THOKAS BECKWITH, CALIFORNIA.

SWAGE AND Raina. GAUGE.

Application filed April 1, 1926. Serial No. 99,015.

The present invention relates to a combined. swage and raker gauge for saws particularly of the raker type. The general object ofthe invention is to provide a tool of this nature which is designed for speed and accuracy and takes the place of two ordinary tools used to accomplish the same ends and is more efiicient and reliable in its operation.

Another very important object of the invention is to provide a tool of this nature which is simple in itseonstruction, easy to manipulate, and otherwise welladapted to the purpose for which it is designed.

With the above and numerous other objeots in view as will appear as the description proceeds. 'the invention resides in certain novel features of construction, and in the combination and arrangement of parts as will be hereinafter more fully described and claimed. p

In the drawings Figure 1 is a side elevation of the toolem bodying the features of my invention.

Figure 2 is anlend'elevation thereof.

' Figure 3 is a perspective view showing one side of the lever.

Figure 4 is a perspective view of the hammer.

Referring to the drawings in detail it will be seen that the body A of the tool is substantially U-shaped in formation including a pair of parallel side plates 5-connec'ted by a bight portion 6. At bothends this bight portiqn is constructed of glass preferably in the form of an insert as is indicated specifically by the numeral 7. An opening 8 is provided in the bight -portion 6 and in the adjacent portions of the side plates 5. The bight portion extends inwardly of the opening 8 to form overhanging brackets 9 and 10 through which are threaded respectively screws 11 and 12 having lock nuts 13 there on. A gauge bar 14 is provided with depending arms 15 having slots 16 formed therein to be pierced by screws or some nut bolts 17 engaged in one plate 5. This gauge bar 14: extends across the opening 18 and may be raised or lowered as desired and held in adjusted position by the screws 17. screw 18 is threaded through one lower corner of one plate and a similar screw 19 is threaded through the opposite lower corner of.-,th e other plate.

An aperture lug 20 rises from the bight portion 6 adjacent the bracket 10' andhas pivoted thereon the intermediate portionof levers 21 by means of bolts 22. Adjacent ends of these levers are provided with openlngs 23 and on their, inner surfaces adjacent openings 23 with teeth 24', one on'eac'h lever. A hammer 25 is disposed between said ends of the levers and a bolt 26 pierces the openings 23 and the center portion of the hammer. Said hammer isprovided on its sides with teeth 27 for cooperating with teeth 24 so that by loosening the bolt 26 the hammer may be rotated to any desiredposition and then by tightening the bolt .the hammer may be setin the adjusted position. A leaf spring 29 is seated in one end of the hammer and projects beyond one side thereof for engaging the gauge bar 14. A spring 30 is engaged on the bolt 22 and with the levers 21 to normallyhold thehammer 25 in a raised position. 1

The body A of this tool has for its principal features the fact that it will rest astride the saw and is thereby prevented from falling off. The body is thus always in proper position when needed. The swage hammer 25 eliminates the possibility of striking the points of the saw teeth while swaging rakers and it also insures perfectly level swage on the raker points so that there will be no high corners. The spring 29 and the gauge bar 14 provide the felling. and bucking gauges both of which are in handy positions on the one tool whereas in the well known structures it was necessary to use two tools, one for felling saws and one forbu'ck saws.

This is true because buck saw rakers must be shorter than those of a felling saw. These felling and bucking gauges are shown at 1'1" and 12. The bar 14 and the spring 29 operate together, the bar being adjustable as heretofore indicated. The spring comes in 7 contact with the gauge bar when the proper amount of swage is attained. The gauge screws 18 and 19 accommodate difi'erent saws as to their thickness. These screws working on opposite sides of the saw insure a perfect level on the saw teeth at all times. teeth 24.- and 27 allow the adjustment of the The hammer so that the buck saw rakers may be swaged more squarely than those of felling saws. The wire spring 30 prevents the hammer from coming into contact with the -saw teeth while moying the tool from one raker to another. The said insert 7 is used be cause it is less injurious to saw teeththan a metal to metal contact. 2

It will be apparent from the above detailed description that the tool may be used with more speed'and accuracy and at thesame vention and the above description. It will be apparent that changes in the details of construction and in the combination and arrangement of parts may be resorted to without departing from the spirit or scope of the invention as hereinafter claimed or sacrificing any of its advantages.

Ha-ving thus described my invention, what I claim as new is 1. A device of the class described including a U-shaped bod having the sides and bight portion provi ed with an opening intermediate the ends of the body, brackets extending from the bight portion into the opening, screws in the brackets, a bar extending across the opening, arms on the bar provided with slots, bolts piercing the slots and engaged in theobody, and a pivotally mounted hammer.

. 2. A device of the class described includ- 1 ing a U-shaped body having the sides and bight ortion provided with an opening in-' terme iate the ends of the body, brackets extending from the bight portion into the opening, screws in the brackets, a bar ex- I tending across the opening, arms on the bar and engaged in the body provided with" slots, bolts piercingthe slots a lug projecting upwardly from the bight portlon, a lever pivoted on saidlug, a hammer pivoted on said lever, means for adjusting the hammer in res ect to the lever.

3. device of the class described including a U-shaped body having the sides and bight ortion provided with an opening intermediate the ends of the body, brackets extending from the bight portion into the 0 ening, screws in the brackets, a bar exten ing across the opening, arms on the bar provided with slots, bolts piercingthe slots and en gaged-in the body, a lug projecting upward ly from the bight portion, a lever pivoted on said lug, a hammer pivoted on said lever, means for adjusting the hammer in respect to the lever, aspringprojectifig from the hammer for abutting the bar.

&. A device of the class described including a U-shaped body having the sides and bight ortion provided with an opening intermediate the ends of the body, brackets extending from the bight portion into the opening, screws in the brackets, a bar extendin across the opening, arms on the bar provi ed with slots, bolts piercing the slots and engaged in' the body, a lug projecting upwardly from the light portion, a lever pivoted on said lug, a hammer. pivoted on said ever, means for adjusting the hammer in respect to the lever, a spring projecting from. the hammer for abutting the bar, screws eX-' tendin transversely of the,body at opposite sides t ereof and opposite ends thereof.

In testimony whereof I afiix my signature.

DURWARD DOUGLAS THOMAS. 

